namespace A{
    export interface IF{};
    export class Base{};
    export function call():void{
        console.log('Hello');
    };
    export const order:number = 0;
    export namespace B{
        export class Base{};
        export function call():void{
            console.log('Goodbye');
        };
        export const order:number = 1;
    };
}

A.call();
console.log(`${A.order};${A.B.order}`);
A.B.call();
